Which gas occupies the highest volume at stp?
0.02 mol of o2
0.1 mol of cl2
1 mol of n2
2 mol of h2

STP signifies standard temperature and pressure. This conditions are at 1 atmospheric pressure and 0 degrees Celsius. It has been said that at these conditions, one mole of a gas molecule is equivalent to 22.4 liters of volume. Therefore, the correct answer is the last option which is 2 mol of H2.

The answer for this question is d. none of these